Bug 1007939 (CVE-2013-4348)

Summary:	CVE-2013-4348 kernel: net: deadloop path in skb_flow_dissect()
Product:	[Other] Security Response	Reporter:	Petr Matousek <pmatouse>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	bhu, carnil, esammons, iboverma, jasowang, jkacur, jross, jrusnack, juzhang, lgoncalv, matt, mcressma, mst, security-response-team, williams
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-08-24 16:00:11 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Bug Depends On:	1007942, 1007943, 1007955, 1025647
Bug Blocks:	1008303

Description Petr Matousek 2013-09-13 15:23:43 UTC

A flaw was found in the way ip packets with ihl of zero were processed in the skb_flow_dissect() function in the Linux kernel.

A remote attacker could use this flaw to cause inifinite loop in the kernel.

Acknowledgements:

This issue was found by Jason Wang of Red Hat.

Comment 3 Petr Matousek 2013-09-13 15:39:17 UTC

Statement:

This issue does not affect Linux kernel packages as shipped with Red Hat Enterprise Linux 5 and 6. Future Linux kernel updates for Red Hat Enterprise Linux MRG 2 might address this issue.

Comment 6 errata-xmlrpc 2013-10-31 16:30:15 UTC

This issue has been addressed in following products:

  MRG for RHEL-6 v.2

Via RHSA-2013:1490 https://rhn.redhat.com/errata/RHSA-2013-1490.html

Comment 7 Petr Matousek 2013-11-01 07:55:50 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1025647]

Comment 8 Josh Boyer 2013-11-01 12:13:03 UTC

http://thread.gmane.org/gmane.linux.kernel/1588387

Comment 9 Fedora Update System 2013-11-05 02:59:12 UTC

kernel-3.11.6-201.fc19 has been pushed to the Fedora 19 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 10 Fedora Update System 2013-11-10 07:57:20 UTC

kernel-3.11.7-300.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 11 Fedora Update System 2013-11-13 02:16:28 UTC

kernel-3.11.7-100.fc18 has been pushed to the Fedora 18 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 12 John Kacur 2014-02-06 13:41:49 UTC

Upstream commit 6f092343855a71e03b8d209815d8c45bf3a27fcd